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C47940 Brass vs. C87600 Bronze

Both C47940 brass and C87600 bronze are copper alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C47940 brass and the bottom bar is C87600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 14 to 34
18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 380 to 520
470
Tensile Strength: Yield (Proof), MPa 160 to 390
230

Thermal Properties

Latent Heat of Fusion, J/g 170
280
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 850
970
Melting Onset (Solidus), °C 800
860
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 110
28
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.2
8.5
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
43
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
71
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
240
Stiffness to Weight: Axial, points 7.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 17
16
Strength to Weight: Bending, points 14 to 17
16
Thermal Diffusivity, mm2/s 36
8.1
Thermal Shock Resistance, points 13 to 17
17

Alloy Composition

Copper (Cu), % 63 to 66
88 to 92.5
Iron (Fe), % 0.1 to 1.0
0
Lead (Pb), % 1.0 to 2.0
0 to 0.5
Nickel (Ni), % 0.1 to 0.5
0
Silicon (Si), % 0
3.5 to 5.5
Tin (Sn), % 1.2 to 2.0
0
Zinc (Zn), % 28.1 to 34.6
4.0 to 7.0
Residuals, % 0
0 to 0.5